Astral CPVC Pro

  • Corrosion resistant
  • Tough, rigid material
  • Lower bacterial growth
  • No scale, pit or leach formation
  • Hot and cold water compatible
  • Fire safety
  • Easy installation


SDR 11 & 13.5: ½” (15 mm) to 2” (50 mm) CTS as per ASTM D2846 & IS


Astral CPVC Pro

ASTRAL CPVC PRO is a class apart in the category, is something more than just a hot and cold plumbing system, an initiative of Astral to deliver a world class plumbing solution.

ASTRAL CPVC PRO pipes and fittings, manufactured by Astral Poly Technik Ltd., are made from the specialty plastic, chemically known as Chlorinated Poly Vinyl Chloride (CPVC). This CPVC compound shall meet cell class DP 110-2-3-2 as per IS 15778 and a maximum service temperature up to 93°C. This compound is carefully designed in our R & D and backed by our own expertise of manufacturing CPVC piping system from last 17 years, which gives excellent results in all applications for CPVC piping system. It is unique combination of highest impact resistance without any loss in pressure bearing capacity / Tensile strength or Vicat softening temperature. This ensures best, trouble-free service and also stands notch above the initial installation issues of cracking / damages due to handling, storage and installation.

These Pipes are produced in copper tube size (CTS) from 15 mm (½”) to 50 mm (2”) with two different standard dimensional ratios - SDR-11 and SDR-13.5 (Class 1 & Class 2 respectively as per IS 15778). The fittings are produced as per SDR 11. The Pipes and Fittings in SDR 11 class is also complies to ASTM standard. All Astral CPVC SDR 11 and SDR 13.5 pipes are made from identical CPVC compound material having same physical properties. The CPVC fittings are manufactured from compound material which meets all the requirement as per ASTM standard.

Apart from having the same physical properties, SDR 11 and SDR 13.5 come with different wall thickness and therefore, at any given temperature, they have different pressure ratings. For e.g.

PipeTemperature (°C)Pressure Rating

Grade Unit 23°C 82°C
400 100
SDR 13.5 PSI
320 80

Astral also produces CPVC PRO pipes in iron pipe size (IPS), available sizes are 65 mm (2½”) to 300 mm (12”) in SCH 40 and SCH 80 which meets the requirements of ASTM F 441. The pressure rating varies with schedule pipe size and temperature. CPVC pipes of Copper Tube Size (CTS) dimensions can also be connected to CPVC (IPS) dimensions by using IPS x CTS fittings.


IS 15778:

Standard Specification for CPVC pipes for Hot and Cold Water Supplies -Specification.

ASTM D1784:

Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds.

ASTM D2846:

Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot & Cold water distribution systems.

ASTM F493:

Standard Specification for Solvent Cements for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe & Fittings.

ASTM F441:

Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe, SCH 40 & 80.

ASTM F438:

Socket- Type Chlorinated Polyvinyl Chloride Plastic Pipe Fittings. Schedule 40.

ASTM F439:

Socket-Type Chlorinated Polyvinyl Chloride Plastic Pipe Fittings. Schedule 80.

ASTM D2774:

Underground installation of Thermoplastic pipes.


NSF International, a not-for-profit, non-governmental organization is the world leader in standards development, product certification, education, and risk management for public health and safety (www.nsf.org). For 65 years, NSF has been committed to public health, safety and environmental protection. The NSF Mark is recognized for its value in international trade and is respected by regulatory agencies at the local, state, and national levels. Astral is the first Indian company to obtain certification from NSF for its CPVC products.


Pipes and fittings made from CPVC compounds shall be clearly marked with the manufacturers trademark, material designation, applicable ASTM /

IS standard. SDR 11 Pipe : Tan coloured with red stripe
SDR 11 fittings : Tan Colour
SDR 13.5 Pipe : Tan coloured with brown stripe
SDR 11 fittings : Tan Colour
SCH 40 Pipe : Tan coloured with brown stripe
SCH 40 fittings : Tan Colour
SCH 80 Pipe : Tan coloured red stripe
SCH 80 fittings : Tan Colour/Grey Colour


Hot and Cold water applications in homes, apartments, hotels, resorts, hospitals, high and low rise buildings, corporate and commercial houses, academic institutes etc. for pure and hygienic water supply.

Product Range




Features and Benefits

Hot and Cold water compatible:

Astral CPVC PRO Piping System is compatible with both hot and cold water. It withstand very high temperature compared to any other thermoplastic plumbing systems. Many solar and electric water heaters have CPVC piping system for heat efficiency and lower installation cost.

Corrosion resistance:

Astral CPVC PRO Piping System gives excellent resistance even under the harshest of water conditions so there are none of the purity worries from corrosion of metal pipe or soldered joints. Astral CPVC PRO Piping System keeps pure water as pure.

Lower bacterial growth:

Bacteria build up with CPVC is far lower than with alternative piping materials - Copper, Steel and other thermoplastics.

Tough, rigid material:

Astral CPVC PRO Piping System has a much higher strength than other thermoplastics used in plumbing. This means that CPVC needs less hangers and supports and there is no unsightly looping of the pipe. Astral CPVC PRO Piping System has a higher pressure bearing capability. This leads to the same flow rate with a smaller pipe size.

No Scale, pit or leach formation:

Even after years of use in the most aggressive conditions, Astral CPVC PRO Piping System won’t corrode, standing up to low pH water, coastal salt air exposures and corrosive soils.

Astral CPVC PRO Piping System stays as solid and reliable as the day it was installed. It maintains full water carrying capacity because its scale resistance means no build up to cause water pressure loss.

Unaffected by chlorine in the water:

Some materials may be adversely affected by chlorine contained in the water supply, which can cause breakdown of the polymer chains and potential leaks. In this respect, Astral CPVC PRO Piping System is unaffected by the chlorine present in potable water supply.

Chemical resistance:

CPVC has excellent chemical resistance to strong mineral acids and bases.

Low thermal expansion:

Astral CPVC PRO Piping System has a lower coefficient of thermal expansion than alternative plastics, reducing the amount that the pipe expands when hot water is running, again reducing unsightly ‘looping’ of the pipe.

Easy, cold welding process:

CPVC uses a simple, solvent cement jointing method. Tools required are very simple and inexpensive (chamfering tool and pipe cutter only) and do not require the need for an electrical source.

Superior insulation:

Astral CPVC PRO Piping System is more energy efficient than metal pipe. As an insulator it does not lose heat the way metal pipes do. Heat loss and thermal expansion are reduced.

Fire safety:

CPVC has a limiting Oxygen Index (LOI) of 60. Thus in air, Astral CPVC PRO Piping System does not support combustion. No flaming drips, does not increase the fire load, low flame spread, low smoke generation.

Cost seffective:

CPVC Plumbing System is very cost effective than any other plumbing systems. It saves cost on fittings, loops, anchors, offsets, insulation, labour and expensive tools. More over CPVC plumbing systems last longer more than 50 years.